Tetraethylammonium hydrogen carbonate

For this reason, electrophilic additions such as addition of hydrogen halides are very difficult, as can be seen in Explanations 13, 14, and 15. But because of the low overall electron density, the double bonds in perfluoroalkenes are easily attacked by nucleophiles such as fluoride ion. If perfluoropropene is treated with dry potassium fluoride in a proton-donor solvent such as formamide, the fluoride anion joins the less negative carbon of the double bond and forms a negatively charged intermediate that readily reacts with the proton of formamide to give 2 H-perfluo-ropropane [5/]. Such a nucleophilic addition takes place with other fluorides such as cesium fluoride, tetraethylammonium fluoride, and sil-... 

Reaction of the tetraethylammonium salt of the tetracarbonyl[l,2-bis(diphenylphosphanyI)-ethane]vanadate complex 37 with 1,2,3-triphenylcyclopropenylium bromide (33) afforded the hydrogenated acyl complex of the type 38 with the acyl group linked to the metal via its carbon and oxygen atoms formally acting as a three-electron donor. The structure was determined by X-ray crystallography. ... 

Perchlorate salts of tetraalkylammonium ions were chosen as electrolytes for this study, because they reduce hydrogen evolution. The chain length of the alkyl group was varied, i.e., ethyl, propyl, butyl, and octyl. A decrease in photocurrent was observed when the carbon chain length was increased. The surface state resistance was found to increase with increase of chain length. Correspondingly, a decrease in surface state capacitance was observed. These results indicate that tetraethylammonium ions are adsorbed stronger than tetrabutylammonium ions. 

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